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Redox Reactions question bank (Chemistry)

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Q1.

Calculate the oxidation number of sulfur in $\text{H}_2\text{SO}_4$.

(A)

$+2$

(B)

$+6$

(C)

$+4$

(D)

$-2$

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Q2.

Identify oxidant and reductant, respectively, in the following reaction:
$\text{Zn}(s) + \text{Cu}^{2+}(aq) \longrightarrow \text{Zn}^{2+}(aq) + \text{Cu}(s)$

(A)

$\text{Zn}$, $\text{Cu}^{2+}$

(B)

$\text{Cu}$, $\text{Zn}^{2+}$

(C)

$\text{Cu}^{2+}$, $\text{Zn}$

(D)

$\text{Zn}^{2+}$, $\text{Cu}^{2+}$

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